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Global Issues Network 2013 - Global Warming
Transcript of Global Issues Network 2013 - Global Warming
on Global Warming
in a Globalizing World
IDF Bilkent High School
What effects them?
There are inputs and outputs;
Are there any other inputs
or outputs on your mind?
Lets see different
Nature is the most important thing.
Nature is not a property of humankind.
The disturbance to nature should be minimized.
Implication that materialism for its own sake is wrong and that economic growth can be geared to providing for the basic needs of those below subsistence levels.
Economic growth may stop.
Which philosophy would be more
useful for sustainability?
Discussion 2: Ecocentric or Technocentric,
If you are thinking a year ahead, plant a seed.
If you are thinking a decade ahead, plant a tree.
If you are thinking a century ahead, educate the people.
Importance of education
Economy is more important
that the nature
We can solve the problems
Self Reliance Soft Ecologists
and deploying new
What to do?
We must reduce emissions
Support renewable energy
Support energy sufficiency industries.
Economics, sociology, and politics are the main topics of the path going through the solution.
Actually we aren’t in a good shape. Even if we cut the green gas emissions, earth would
continue warming but if we reduce the green gas emission, we can reduce the effect from 10
to 2.5 Fahrenheit.
According to the IPCC, we'd have to reduce GHG emissions by 50% to 80% so there is no
time to waste.
The car you drive
the fuel consumption
Unplug a freezer
Buy good wood
Plant a Tree
Turn off electric devices
What is Global Warming?
Rise in Average Temperature
Oceans and Athmosphere
CO2 Emission caused by;
Fossil Fuel Burn
Increased use of chemical fertilizers
Rise in sea levels
Massive crop failures
Increased killer storms
Widespread extinction of species
Disappearance of coral reefs
What is it?
Thermal radiation from a planetary
surface is absorbed by Greenhouse Gases
Radiation is re-radiated in all directions.
One of the directions is surface of the Earth.
Elevation of the average surface
temperature above what it would
be in the absence of the gases.
How a greenhouse works?
Sun enters the
Sun warms up
As long as there are
Change in weather
during a given time.
Reigonal Effects of
Decreasing snowpack in Western Mountains,
Tropical Rainforests turning into Savannah.
Extinction of tropical species
Significant losses of water.
Inland flash floods,
Erosion and intense sea level rise,
Reduced snow cover
Compromised agricultural production
Increased water stress
Decreased water availability,
Coastal areas at risk,
Floods and Droughts
“Scientists have come up with the firmest evidence so far that global warming will significantly increase the intensity of the most extreme storms worldwide. The maximum wind speeds of the strongest tropical cyclones have increased significantly since 1981, according to research published in Nature this week. And the upward trend, thought to be driven by rising ocean temperatures, is unlikely to stop at any time soon.”
“Climate change is expected to have the most severe impact on water supplies. “Shortages in future are likely to threaten food production, reduce sanitation, hinder economic development and damage ecosystems. It causes more violent swings between floods and droughts.”"
Climate change now represents at least as great a threat to the number of species surviving on Earth as habitat-destruction and modification.” Chris Thomas, conservation biologist at the University of Leeds